How to Seal Block Paving Driveways & Patios [5 Easy Steps]

How to Seal Block Paving Driveways & Patios [5 Easy Steps]

Apr 13, 2023

Want to learn how to seal block paving? Looking for the step-by-step procedure to seal your block pavers?

If so, this article will be the perfect place for you. Here, you’ll find the step-by-step process to seal block paving driveways and patios, and in just a few easy steps, you will be able to give your pavers the protective layer it wants.

Sealing your block paving is essential to keep your outdoors looking fantastic for years to come. It protects your slabs from weed growth and keeps them looking immaculate.

You might have heard prevention is better than cure. So, even if you don’t have any weeds, you should regularly seal your block pavers with a quality sealant.

But before you start sealing your block pavers, have a look at the tools and materials you’ll need during the process.

How to Seal Block Paving – Tools and Materials Required

Here is the list of tools and materials you need while sealing your block pavers. You should get them ready before you start the sealing process.

  • Weed killer
  • Squeegee
  • Broom/ Brush
  • DIY sprayer
  • Jointing sand
  • Pressure washer
  • Jointing sealer
  • Small brush
  • Sealing roller
  • Bin bag/ sack for weed disposal
  • Gloves/ protective clothing

How to Seal Block Paving – Complete Process

If you want to learn how to seal block paving driveways, consider following the below step-by-step process.

Step 1 – Cleaning the Surface

The first and foremost step while sealing your block pavers is to clean them. Cleaning your block pavers or outdoor floor tiles is important to wash away all the dust and debris. Pressure wash the surface of your block pavers to remove algae, lichen, dirt, dust and weeds. If there are tough stains like oil and grease, consider removing them with quality oil stain remover. Once you’ve applied the stain remover, leave it to dry for around 2-3 hours. Once the surface is dried, sweep it with a stiff broom.

Step 2 – Sanding the Joints

Once the surface of your block pavers is completely dry, sanding the joints would be the next step in the process. Refill the joints between the pavers with jointing sand, as the existing sand would have washed out during the cleaning process. Now, brush a thin layer of jointing sand over the surface and sweep into the joints. Once the sand is consistent, you’re ready to seal your block pavers.

Step 3 – Preparation for Sealing the Block Pavers

Apply the sealant on your rolling kit as a primer before rolling it out onto your pavers. To ensure that you can apply enough sealant as you go, make sure there is always a good pool of sealant in front of your roller. Don’t worry if it takes a while to cover the entire area because sealant coverage is typically poor on the first coat.

Step 4 – Apply the First Coat of Sealing

Now, apply the first coat of paver sealant on the surface of your block pavers. But before you start, you should take safety precautions and make sure the area is well-ventilated. Now, start applying the first layer of sealant. Avoid applying a thick layer of sealant on the surface. Once you’ve applied, leave it to dry for around 1-2 hours.

Step 5 – Apply the Second Coat of Sealing

Once the first coat is dry, apply a second coat of sealing. Fill the paver sealant in a sprayer and apply the second coat on the surface of your block pavers. Make sure to cover the entire surface. Once you’ve applied the second layer of paver sealant, leave it to dry for around 24 hours before you start walking or driving on the surface.

Benefits of Sealing the Block Paving

Once you’ve learned how to seal block paving, it’s important to know why it’s important for your pavers. So, here are the benefits of sealing the block paving:

1. Enhances the Block Paving Colour

Sealing enhances the colour of your block paving. It gives your pavers a shiny and new look that makes your outdoor space stand out.

2. Fade & Weather Resistant

Just like black limestone paving that requires sealing, same way block paving also requires sealing to maintain its beautiful colour. Sealing the block paving makes the surface weather and fade-resistant. The colours of your block pavers will remain as it is for years, and your block paving will be able to withstand harsh weather conditions.

3. Prevents Growth of Weeds and Moss

One of the most important benefits of sealing block paving is that it prevents the growth of moss and weeds on the surface of your block pavers.

4. Makes Cleaning Easy

Once you’ve sealed your block paving, it will be easier for you to clean the surface in the future. You will be able to remove the oil and other stains easily.


Hope this guide on how to seal block paving has given you some inspiration and confidence to complete the project yourself. You can easily seal your block pavers and maintain their beautiful look for years to come.

Frequently Asked Questions

Below are the frequently asked questions on how to seal block paving that will help you understand the sealing process better.

Q1. How often do you need to seal block paving?

Paver sealant on block paving, sandstone, slate, concrete, etc., can last for around 2-4 years.

Q2. Is it a good idea to seal block paving?

Sealing your block paving can make your pavers look great for years and increase your patio’s life span. It also makes the surface of your block pavers weather and fade-resistant.

Q3. What’s the best way to seal block paving?

You can follow the steps mentioned above to seal your block paving. Make sure to deal with quality materials only.

Q4. Do you sand block paving before sealing?

Sanding the joints before sealing the block paving is important. Sealing block paving involves cleaning, sanding and then sealing.